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Untersuchung der Gammastrahlung aus der unelastischen Streuung von 2,75 MeV-Neutronen an203Tl und205Tl

Investigation of gamma-radiation after inelastic neutron scattering on203Tl and205Tl at 2.75 MeV

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Zeitschrift für Physik A Atoms and Nuclei

Abstract

γ-spectra from the (n, n′ γ) reaction of 2.75 MeV neutrons of natural Tl and enriched203Tl were measured with Ge(Li) detectors. By means of these measurements about 120γ-lines could be assigned to either of the two isotopes. About half of the lines — however accounting for more than 80% of the totalγ-intensity — could be incorporated into the respective decay schemes, which could be extended in this way. Additionally, for a number of levels already known more accurate level energies could be determined. Comparison of the results with Hauser-Feshbach calculations leads to discrepancies which cannot be removed completely by variation of the model parameters within acceptable limits.

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Authors and Affiliations

  1. Fachbereich Physik der Technischen Universität, München, Federal Republic of Germany

    S. Hegewisch & H. Vonach

  2. Institut für Kernphysik der Technischen Hochschule, Darmstadt, Federal Republic of Germany

    H. Vonach, H. Wohlfarth & R. Kretz

  3. Institut für Radiumforschung und Kernphysik, Österreichische Akademie der Wissenschaften, Boltzmanngasse 3, A-1090, Wien, Austria

    H. Backe

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  1. S. Hegewisch
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  2. H. Vonach
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  3. H. Wohlfarth
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  4. R. Kretz
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  5. H. Backe
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Additional information

Die Autoren danken Herrn Dr. G. Stengl für seine Mitwirkung bei den Absolutmessungen der Gammaproduktionsquerschnitte und Prof. Dr. F. Böhm für die Überlassung der203T1-Probe.

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Hegewisch, S., Vonach, H., Wohlfarth, H. et al. Untersuchung der Gammastrahlung aus der unelastischen Streuung von 2,75 MeV-Neutronen an203Tl und205Tl. Z Physik A 300, 165–182 (1981). https://doi.org/10.1007/BF01412293

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  • DOI: https://doi.org/10.1007/BF01412293

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